Genetic diversity parameters within the Core Sample (171 accessions) and within the 6 genetic groups identified.

a<p>group number as defined in the text. UN corresponds to unassigned accessions. CS: Whole Core Sample.</p>b<p>number of accessions assigned to the different genetic groups. Assignment was based on full congruence between the three marker systems (cf <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0033470#pone.0033470.s004" target="_blank">Table S1</a>, column “Group Consensus Schemes”).</p>c<p>races present in the group defined according to grain and spikelet morphology (Harlan and De Wet, 1972). B: bicolor, C: caudatum, D: durra, G: guinea, K: kafir, Gm: guinea margaritiferum sub-race defined according to Snowden's classification.</p>d<p>Af: Africa, As: Asia, ME: Middle East, SAf: Southern Africa, WAf: Western Africa.</p>e<p>allelic richness and private allelic richness computed with HP-Rare are normalized values.</p>f<p>expected heterozygosity estimated with PowerMarker. Standard deviations estimated with 1000 bootstraps are shown in brackets.